Census 1901 and 1911

Full government censuses were taken of the whole island in 1821, 1831, 1841, 1851, 1861, 1871, 1881, 1891 1901, and 1911. The first four, for 1821, 1831, 1841, and 1851, were largely destroyed in 1922, in the fire at the Public Record Office; surviving fragments are detailed under the county source-lists. Those for 1861 1871 1881 and 1891 were completely destroyed earlier, by order of the government

This means that the earliest surviving comprehensive returns are for 1901 and 1911. Because of this, the normal rule that census returns should not be available to the public for 100 years has been suspended in the Republic of Ireland, and the original returns can be consulted in the National Archives.

The 1901 census B1 form details are searchable here. This form gives details about the type of house and the head of the households name .

The first four, for 1821, 1831, 1841, and 1851, were largely destroyed in 1922, in the fire at the Public Record Office; surviving fragments are detailed below. Those for 1861 and 1871 were completely destroyed earlier, by order of the government.